#63B178
Closest named color: Tea (#65AB7C). oklch(69.5% 0.114 151.2), rgb(99, 177, 120).
Aa
Black text reads best on this color (8.09:1).
About this color
#63B178 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.114 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.020 away. Black text reads best on it, at 8.09:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 8.09:1 |
| White text | 2.59:1 |
Values
| HEX | #63B178 |
| RGB | rgb(99, 177, 120) |
| HSL | hsl(136, 33%, 54%) |
| OKLCH | oklch(69.5% 0.114 151.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #63B178 | 2.59:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #63B178 | 8.09:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #63B178 text on white | 2.59:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #63B178 text on black | 8.09:1 | AAA | Lc -51.4 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C7E1CC
oklch(88.5% 0.04 151.1)
-
Step 300
300
#9FCEA9
oklch(80.8% 0.072 151)
-
Step 400
400 (this color)
#63B178
oklch(69.5% 0.114 151.2)
-
Step 500
500
#32A259
oklch(63.2% 0.147 151)
-
Step 600
600
#008B42
oklch(55.7% 0.15 151)
-
Step 700
700
#007537
oklch(49.2% 0.132 151.1)
-
Step 800
800
#00602C
oklch(42.8% 0.115 151.2)
-
Step 900
900
#0A4F26
oklch(37.7% 0.094 151.4)
-
Step 950
950
#0A2E16
oklch(26.8% 0.06 151)
#63B178 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B2A574 | 0.099 |
| Deuteranopia (no green cones) | #A69D7B | 0.096 |
| Tritanopia (no blue cones) | #54AFA2 | 0.061 |
| Achromatopsia (no color) | #A1A1A1 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B178
#63B178
oklch(69.5% 0.114 151.2)
- #C682BD
#C682BD
oklch(69.6% 0.114 331.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #63B178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.020
- Faded Green #7BB274 ΔE 0.025
- Dusty Green #76A973 ΔE 0.026
- Boring Green #63B365 ΔE 0.027
- Algae #54AC68 ΔE 0.029
- Dark Seafoam Green #3EAF76 ΔE 0.030
- Medium Sea Green #3CB371 ΔE 0.033
- Dull Green #74A662 ΔE 0.035
Use #63B178 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.